GSMA Management Team
Reporting to the Board, the Director General is responsible for the day-to-day management of the GSMA. The Director General is supported by a Management Team with responsibility for specific aspects of the Association’s work.
Hyunmi Yang
As Chief Strategy Officer for the GSMA, Hyunmi Yang is responsible for working with the GSMA’s operator members in identifying opportunities that will advance the development of the mobile communications industry.
Before joining the GSMA, Ms. Yang served most recently as Executive Vice President and Chief Customer Officer for KT. When joining KT as an Executive Vice President and Chief Strategy Officer of the Mobile Business Group in 2009, Ms. Yang was noted for being the first female executive in the history of telecommunications in Korea. Later responsible for both the mobile and fixed line businesses as a Chief Customer Officer, she had overall ownership of the master customer portfolio, development of a group customer loyalty programme and overall customer strategies. Further, with her unique blend of careers in the fields of telecom and finance, Ms. Yang has led the way and set the pace with regards to telecom–banking convergence services such as smart wallet and mobile money transfer services, as well as NFC.
Prior to KT, she was Executive Vice President and Chief Marketing Officer for Shinhan Bank in Korea, where she led marketing strategies and product development. Ms. Yang has also held senior management roles at American Express in New York, where she applied data-driven insights to marketing strategies and loyalty programmes.
Ms. Yang holds a Ph.D. in applied mathematics and statistics from the State University of New York at Stony Brook and M.S. and B.S. degrees in mathematics from Seoul National University in Seoul.
Alex Sinclair
As CTO, Alex is responsible for managing the GSMA technical programme and coordinating all resources and activities. Alex’s role encompasses technology & standards, products & services and programme management. Alex is a member of the Executive Management Committee.
Jeremy Sewell
Jeremy is responsible for commercial development, business and financial performance at GSMA. He leads several teams across corporate, financial, legal, professional services and business development functions. He was instrumental in establishing GSMA’s US based commercial subsidiary GSMA Ltd and negotiating the acquisition of rights to its flagship Mobile World Congress trade show, from UK listed Informa Plc. Most recently, negotiating GSMA’s partnership with Silicon Valley based Cloudmark Inc to develop GSMA’s Spam Reporting Service to combat the growing mobile industry threat from messaging abuse.
Jeremy qualified as a Chartered Accountant in the UK in 1989 spending ten years in practice with a focus on audit and consulting in multiple countries across Europe and Asia. Jeremy worked extensively in Russia in the earlier 1990’s raising overseas debt finance, working with State owned corporations and development banks. Before joining the GSMA in 2000 Jeremy held CFO positions with two European corporations in the transport and logistics industry.
John Hoffman
John Hoffman is a dynamic and experienced mobile industry executive. Having served as a senior executive with mobile operators in both the U.S. and Europe and CEO of mobile technology suppliers fastmobile and Roamware, Mr. Hoffman has extensive experience of the many facets of the mobile industry
Michael O’Hara
As chief marketing officer for the GSMA, Michael O’Hara is responsible for the GSMA’s global marketing and communications strategy, working in close partnership with the organisation’s membership to identify, prioritise and execute on strategic marketing issues for the mobile industry.
Before joining the GSMA, O’Hara was the general manager for marketing and industry management within the Communications Sector at Microsoft. In this role, O’Hara led Microsoft’s initiatives to deliver world-class software solutions to the communications industry, including telecommunications companies, hosting service providers and media & entertainment organizations. Prior to Microsoft, O’Hara was vice president, marketing at Sonus Networks, a leading provider of carrier voice over IP solutions, where he drove the company’s marketing strategy and oversaw all marketing functions. In that capacity, he spearheaded the business strategy to re-focus Sonus into the wireless communications market, and established the company as a major player in the voice over IP domain.
Previously, O’Hara served as chief marketing officer at Nortel Networks in Europe. In that role, he had responsibility for Nortel’s marketing and sales operations programs in Europe, the Middle East and Africa, directing functions such as public relations, advertising, government relations, analyst relations, events, customer training and field marketing. Prior to that, O’Hara was vice president of global business operations reporting to the chief operating officer, and he also held management positions in a number of areas including sales, operations, customer service and manufacturing engineering with Nortel Networks in Europe.
He holds an honors degree in electrical and electronic engineering from the Queens University of Belfast.
Tom Phillips
Tom joined the GSMA in 2004 and is responsible for leading the GSMA’s public policy agenda with governments, regulators and policy influencers, globally. Before joining the GSMA, Tom was Group Director, Public Policy with Cable & Wireless.
He has also held senior positions with PA Consulting Group’s London practice, mobile operator Orange and British Aerospace. Tom has a degree in Physics and an MBA, and is a Chartered Engineer. He has over 25 years’ experience in the telecoms industry.
Chris Locke
Chris is the Managing Director, Mobile for Development. Mobile for Development works with the mobile industry globally to build services that have a development impact for the poorest people in the world. It helps take critical mobile services such as health, farmer, money & learning tools to scale to help countries develop at a nation-wide level. Chris has spent the past 15 years working in the mobile and internet industries, for companies such as the Virgin Group, Three, AOL and T-Mobile.
Previous to his industry career he was the Xerox Lecturer in Electronic Communication and Publishing at University College London, and has maintained strong links to the research community, including being the editor of “Thumbculture: The Meaning of Mobile Phones in Society”, an anthology of research considering the global social effect of mobile technology.
Anne Bouverot
Anne Bouverot is Director General of the GSMA and a Member of its Board.
Anne brings to the GSMA a wealth of experience and a proven track record of success in the highly dynamic mobile industry. With a deep understanding of the opportunities and the challenges facing mobile operators today, she leads the GSMA as the essential industry partner for its operator members around the world, enabling their continued success through driving innovation, providing thought leadership and advocating for the industry.
Before joining the GSMA, Anne was Executive Vice President for Mobile Services for France Telecom Orange, where she defined the strategic transformation programmes for a business serving more than 120 million customers and revenues of more than 14 billion euros at the time.
Prior to France Telecom Orange, Anne led a 600-person business unit of Equant and was responsible for developing IT services for Equant’s multinational business customers. She began her career in telecommunications as project manager for Telmex in Mexico in 1991.
Anne holds M.S. and Ph.D. degrees in mathematics and computer science from the Ecole Normale Supérieure in Paris and an M.S. degree from Telecom Paris. She also serves as a non-executive director of Groupama, a major French insurance company, and as a non-executive director of Edenred, the world leader of prepaid corporate services.
GSMA Ltd. Board
GSMA Ltd., a commercial company wholly-owned by the GSMA, is responsible for the commercial activities of the GSMA, including the mobile industry’s premier events, the Mobile World Congress and the Mobile Asia Expo. The GSMA Ltd. Board is responsible for the oversight and strategic direction of these commercial activities.
Craig Ehrlich
Craig Ehrlich is the former long time chairman of the GSMA. Craig is affiliated with Bharti Airtel, the world 5th largest telecom company, as independent nonexecutive director of the company. He is also chairman of Carmel Ventures Asia, a leading venture capital company. In the Philippines, Craig is vice chairman of publicly listed ISM and board member of publicly listed Philweb, the country’s leading gaming company.
He recently retired as chairman of Taiwan’s largest cable television company, kbro, which was sold in December 2010. The company was primarily owned by the Carlyle Group. Craig is also Chairman of Novare Technologies Ltd., an onshoring and outsourcing software development company based in Hong Kong and serving clients throughout the world. Craig has been involved in Hong Kong’s communications industry since he first settled in Hong Kong in 1987. He joined Hutchison Cablevision as managing director in October 1987 and was a founding member of the team that launched STAR TV, Asia’s first satellite delivered multichannel television network.
After four years with Hutchison Whampoa, Mr Ehrlich became the Group Operations Director at Hutchison Telecommunications and was responsible for the company’s operations in 10 countries. In 1993 he left the Hutchison group to establish companies involved in the introduction of cable television and paging services. He sold these companies in September 1996 and started Hong Kong mobile operator SUNDAY Communications Ltd. in November 1996.
Craig is also a member of UCLA/Peking University Joint Research institute Advisory Committee and a founding member of Global Management Centre at the Anderson Business School UCLA. Craig holds a B.A. degree from the University of California Los Angeles, a Masters degree from Occidental College and a postgraduate fellowship with the Coro Foundation. He has resided in Hong Kong for 24 years.
Christian Salbaing
Christian joined Hutchison Whampoa Limited (HWL) on January 1, 2001 as Managing Director, Hutchison Europe Telecommunications Luxembourg, HWL’s main holding company for its 3G businesses in Europe. Between 2001 and 2005, he worked on the rollout of 3 Group’s 3G mobile broadband networks across Europe and coordinating Group activities in Regulatory Affairs, Public Policy and Lobbying, Technology and Branding.
He was appointed Deputy Chairman of Hutchison Whampoa (Europe) Limited in 2005 and of Hutchison Whampoa Luxembourg Holdings S.a.r.l in 2009. As such he heads up HWL’s European administrative headquarters in London and Luxembourg and oversees HWL’s European Telecoms, Retail, Ports and other businesses in Europe. Christian also represents HWL’s business interests before the European Commission and host governments in each of the countries where HWL has investments (25 countries in Europe).
Christian was elected as a member of the GSMA Board for a 2 year term commencing on January 1, 2011 and also sits on the Governance Committee of that Board. He was the chairman of the GSMA Spectrum Management Committee (2004-2006) and a member of the GSMA Executive Management Committee (2005-2007).
Christian has been a member of Telecom Board of the International Telecom Union (the ITU is a UN Agency) since June 2005 and is a member of the UK Government’s Asia Task Force set up in 2010 by the Secretary of State for Business, Innovation and Skills, Dr Vince Cable.
Christian is bilingual in French and English and has a good working practice of Italian.
Mohan Gyani
Mohan Gyani is a private investor and advisor with over 30 years of experience in the Telecom and Wireless industry. As former President and Chief Executive Officer of AT&T Wireless Mobility Services, he played a key role in the $10.6 Billion IPO of AT&T Wireless in 2000. He was instrumental in overseeing record growth, while completing the expansion of the company’s footprint across the U.S. and the build out of its nationwide next generation GSM network.
Previously, as Executive Vice President and CFO of AirTouch, Mohan was a key leader in the $120 Billion merger of AirTouch and Vodafone and the subsequent $70 Billion joint venture with Bell Atlantic that resulted in the creation of Verizon Wireless. Prior to the merger, he played a major financial, operational and strategic role in the company’s growth from a $1.6 Billion IPO in 1993 to a $70 Billion global company within five years.
Mohan sits, or has sat, on the Boards of numerous U.S. public companies including Keynote Systems, Mobile Telesystems OJSC, Safeway, SiRF Technologies and Union Bank. He is, or has been, on the Board of several other for-profit firms and non-profit organizations such as Handango, IDEA Cellular, Jasper Wireless, mFormation, RingCentral, Roamware, Tellme, Ruckus Wireless, CTIA and the GSM Association. Mohan completed his B.A in Business Administration and earned his MBA degree in Finance from San Francisco State University.
John Hoffman
John Hoffman is a dynamic and experienced mobile industry executive. Having served as a senior executive with mobile operators in both the U.S. and Europe and CEO of mobile technology suppliers fastmobile and Roamware, Mr. Hoffman has extensive experience of the many facets of the mobile industry
Mauro Sentinelli
Mauro Sentinelli began his career in telecoms in 1974 joining SIP (currently Telecom Italia). He went on to become a founder Member of the Global System for Mobile Communication (GSM) and was Chairman of the Committee responsible for the selection of the GSM system. He has since held several notable posts in the industry. These range from the Chairman of the European Telecommunications Network Operators and the Deputy Managing Director of Telecom Italia’s Mobile Division. In 1996 he was responsible for the design and launch of the prepaid “TIMCard” service, for which he received the Outstanding Marketing Award from the GSMA.
In 2000 Mauro was awarded “Man of the Year 1999, Marketing Award”, going on to receive a Lifetime Achievement Award from the GSMA in 2002. Since then Mauro has acted as a TIM Board member, Deputy Chairman of the GSM Association, an Affiliate Member of University California Los Angeles’ Computer Science Department, Board Member of Bharti Airtel, Chairman of the Board of Onda Communication, Board Member of Telecom Italia and Chairman of the Board of Enertel Servizi. He has been awarded the Cavaliere della Repubblica (1999), the Commendatore della Repubblica (2002) and the Grand’Ufficiale della Repubblica (2006) by the Presidency of the Italian Republic.
Mauro holds a Doctorate in Electronic Engineering from Rome University, a Masters in Telephony from Turin Polytechnic and an MBA from INSEAD (France).
Jeremy Sewell
Jeremy is responsible for commercial development, business and financial performance at GSMA. He leads several teams across corporate, financial, legal, professional services and business development functions. He was instrumental in establishing GSMA’s US based commercial subsidiary GSMA Ltd and negotiating the acquisition of rights to its flagship Mobile World Congress trade show, from UK listed Informa Plc.
Most recently, negotiating GSMA’s partnership with Silicon Valley based Cloudmark Inc to develop GSMA’s Spam Reporting Service to combat the growing mobile industry threat from messaging abuse.
Jeremy qualified as a Chartered Accountant in the UK in 1989 spending ten years in practice with a focus on audit and consulting in multiple countries across Europe and Asia.
Jeremy worked extensively in Russia in the earlier 1990’s raising overseas debt finance, working with State owned corporations and development banks. Before joining the GSMA in 2000 Jeremy held CFO positions with two European corporations in the transport and logistics industry.
Tom Wheeler
For over three decades Tom Wheeler has worked on the cutting edge of telecommunications policy and business development. The former CEO of the National Cable Television Association and the Cellular Telecommunications & Internet Association, he has started or assisted in the start-up of multiple cable, wireless, and video communications companies.
Currently, he is a managing director with Core Capital Partners – a private equity fund investing in assists companies where technology is a catalyst of change in their business sector. He is the author of Mr. Lincoln’s T-Mails (HarperCollins 2006) and Take Command!: Leadership Lessons from the Civil War (Doubleday, 2000). During the Obama-Biden Transition he was responsible for the Federal agencies in the fields of science, technology, space and the arts.
Bill Hague
Bill Hague is currently Executive Vice President International, Alliances and Integrations at AT&T Mobility. He is based in Atlanta, Georgia. Mr. Hague is a recognized telecom executive with over seventeen years of industry leadership in domestic and international arenas. Mr. Hague’s experience includes key roles in corporate development, mergers and acquisitions, joint ventures, international roaming and strategy, legal affairs and international development. He is currently responsible for developing international wireless strategy and partnerships, as well as domestic and international wholesale and retail roaming support. He also manages the company’s wireless operations in the cruise ship business and company wireless merger integrations.
Mr. Hague previously managed the former AT&T Wireless’ mergers and acquisitions on both the national and international front. Prior to joining AT&T Wireless, Hague was with Pacific Northwest Cellular/Western Wireless Communications where he headed legal, human resources and regulatory affairs. Prior to that, he served as a partner at the law firm of Stokes, Eitelbach & Lawrence.
Mr. Hague is a member of the World Economic Forum’s Telecom Industry Agenda Council. His is also president of the African Education Foundation, a private foundation he established in 1989, after serving in the Peace Corps in West Africa.
GSMA Ltd. Board
GSMA Ltd., a commercial company wholly-owned by the GSMA, is responsible for the commercial activities of the GSMA, including the mobile industry's premier events, the Mobile World Congress and the Mobile Asia Expo. The GSMA Ltd. Board is responsible for the oversight and strategic direction of these commercial activities.
The GSMA Ltd. Board is responsible for the oversight and strategic direction of the commercial activities of the GSMA including the mobile industry's premier events, the Mobile World Congress and the Mobile Asia Expo.
Craig Ehrlich
Craig Ehrlich is the former long time chairman of the GSMA. Craig is affiliated with Bharti Airtel, the world 5th largest telecom company, as independent nonexecutive director of the company. He is also chairman of Carmel Ventures Asia, a leading venture capital company.
In the Philippines, Craig is vice chairman of publicly listed ISM and board member of publicly listed Philweb, the country's leading gaming company. He recently retired as chairman of Taiwan’s largest cable television company, kbro, which was sold in December 2010. The company was primarily owned by the Carlyle Group.
Craig is also Chairman of Novare Technologies Ltd., an onshoring and outsourcing software development company based in Hong Kong and serving clients throughout the world.
Craig has been involved in Hong Kong's communications industry since he first settled in Hong Kong in 1987. He joined Hutchison Cablevision as managing director in October 1987 and was a founding member of the team that launched STAR TV, Asia's first satellite delivered multichannel television network. After four years with Hutchison Whampoa, Mr Ehrlich became the Group Operations Director at Hutchison Telecommunications and was responsible for the company's operations in 10 countries.
In 1993 he left the Hutchison group to establish companies involved in the introduction of cable television and paging services. He sold these companies in September 1996 and started Hong Kong mobile operator SUNDAY Communications Ltd. in November 1996.
Craig is also a member of UCLA/Peking University Joint Research institute Advisory Committee and a founding member of Global Management Centre at the Anderson Business School UCLA. Craig holds a B.A. degree from the University of California Los Angeles, a Masters degree from Occidental College and a postgraduate fellowship with the Coro Foundation. He has resided in Hong Kong for 24 years.
Christian Salbaing
Christian joined Hutchison Whampoa Limited (HWL) on January 1, 2001 as Managing Director, Hutchison Europe Telecommunications Luxembourg, HWL’s main holding company for its 3G businesses in Europe. Between 2001 and 2005, he worked on the rollout of 3 Group’s 3G mobile broadband networks across Europe and coordinating Group activities in Regulatory Affairs, Public Policy and Lobbying, Technology and Branding. He was appointed Deputy Chairman of Hutchison Whampoa (Europe) Limited in 2005 and of Hutchison Whampoa Luxembourg Holdings S.a.r.l in 2009. As such he heads up HWL’s European administrative headquarters in London and Luxembourg and oversees HWL’s European Telecoms, Retail, Ports and other businesses in Europe. Christian also represents HWL’s business interests before the European Commission and host governments in each of the countries where HWL has investments (25 countries in Europe).
Christian was elected as a member of the GSMA Board for a 2 year term commencing on January 1, 2011 and also sits on the Governance Committee of that Board. He was the chairman of the GSMA Spectrum Management Committee (2004-2006) and a member of the GSMA Executive Management Committee (2005-2007). Christian has been a member of Telecom Board of the International Telecom Union (the ITU is a UN Agency) since June 2005 and is a member of the UK Government’s Asia Task Force set up in 2010 by the Secretary of State for Business, Innovation and Skills, Dr Vince Cable.
Christian is bilingual in French and English and has a good working practice of Italian.
Mohan Gyani
Mohan Gyani is a private investor and advisor with over 30 years of experience in the Telecom and Wireless industry. As former President and Chief Executive Officer of AT&T Wireless Mobility Services, he played a key role in the $10.6 Billion IPO of AT&T Wireless in 2000. He was instrumental in overseeing record growth, while completing the expansion of the company’s footprint across the U.S. and the build out of its nationwide next generation GSM network.
Previously, as Executive Vice President and CFO of AirTouch, Mohan was a key leader in the $120 Billion merger of AirTouch and Vodafone and the subsequent $70 Billion joint venture with Bell Atlantic that resulted in the creation of Verizon Wireless. Prior to the merger, he played a major financial, operational and strategic role in the company’s growth from a $1.6 Billion IPO in 1993 to a $70 Billion global company within five years.
Mohan sits, or has sat, on the Boards of numerous U.S. public companies including Keynote Systems, Mobile Telesystems OJSC, Safeway, SiRF Technologies and Union Bank. He is, or has been, on the Board of several other for-profit firms and non-profit organizations such as Handango, IDEA Cellular, Jasper Wireless, mFormation, RingCentral, Roamware, Tellme, Ruckus Wireless, CTIA and the GSM Association.
Mohan completed his B.A in Business Administration and earned his MBA degree in Finance from San Francisco State University.
John Hoffman
John Hoffman is a dynamic and experienced mobile industry executive. Having served as a senior executive with mobile operators in both the U.S. and Europe and CEO of mobile technology suppliers fastmobile and Roamware, Mr. Hoffman has extensive experience of the many facets of the mobile industry
Mauro Sentinelli
Mauro Sentinelli began his career in telecoms in 1974 joining SIP (currently Telecom Italia). He went on to become a founder Member of the Global System for Mobile Communication (GSM) and was Chairman of the Committee responsible for the selection of the GSM system. He has since held several notable posts in the industry. These range from the Chairman of the European Telecommunications Network Operators and the Deputy Managing Director of Telecom Italia's Mobile Division.
In 1996 he was responsible for the design and launch of the prepaid “TIMCard” service, for which he received the Outstanding Marketing Award from the GSMA. In 2000 Mauro was awarded "Man of the Year 1999, Marketing Award”, going on to receive a Lifetime Achievement Award from the GSMA in 2002.
Since then Mauro has acted as a TIM Board member, Deputy Chairman of the GSM Association, an Affiliate Member of University California Los Angeles’ Computer Science Department, Board Member of Bharti Airtel, Chairman of the Board of Onda Communication, Board Member of Telecom Italia and Chairman of the Board of Enertel Servizi.
He has been awarded the Cavaliere della Repubblica (1999), the Commendatore della Repubblica (2002) and the Grand’Ufficiale della Repubblica (2006) by the Presidency of the Italian Republic. Mauro holds a Doctorate in Electronic Engineering from Rome University, a Masters in Telephony from Turin Polytechnic and an MBA from INSEAD (France).
Jeremy Sewell
Jeremy is responsible for commercial development, business and financial performance at GSMA.
He leads several teams across corporate, financial, legal, professional services and business development functions. He was instrumental in establishing GSMA’s US based commercial subsidiary GSMA Ltd and negotiating the acquisition of rights to its flagship Mobile World Congress trade show, from UK listed Informa Plc. Most recently, negotiating GSMA’s partnership with Silicon Valley based Cloudmark Inc to develop GSMA’s Spam Reporting Service to combat the growing mobile industry threat from messaging abuse.
Jeremy qualified as a Chartered Accountant in the UK in 1989 spending ten years in practice with a focus on audit and consulting in multiple countries across Europe and Asia. Jeremy worked extensively in Russia in the earlier 1990’s raising overseas debt finance, working with State owned corporations and development banks.
Before joining the GSMA in 2000 Jeremy held CFO positions with two European corporations in the transport and logistics industry.
Tom Wheeler
For over three decades Tom Wheeler has worked on the cutting edge of telecommunications policy and business development. The former CEO of the National Cable Television Association and the Cellular Telecommunications & Internet Association, he has started or assisted in the start-up of multiple cable, wireless, and video communications companies. Currently, he is a managing director with Core Capital Partners – a private equity fund investing in assists companies where technology is a catalyst of change in their business sector.
He is the author of Mr. Lincoln’s T-Mails (HarperCollins 2006) and Take Command!: Leadership Lessons from the Civil War (Doubleday, 2000). During the Obama-Biden Transition he was responsible for the Federal agencies in the fields of science, technology, space and the arts.
Bill Hague

Bill Hague is currently Executive Vice President International, Alliances and Integrations at AT&T Mobility. He is based in Atlanta, Georgia. Mr. Hague is a recognized telecom executive with over seventeen years of industry leadership in domestic and international arenas. Mr. Hague's experience includes key roles in corporate development, mergers and acquisitions, joint ventures, international roaming and strategy, legal affairs and international development.
He is currently responsible for developing international wireless strategy and partnerships, as well as domestic and international wholesale and retail roaming support. He also manages the company's wireless operations in the cruise ship business and company wireless merger integrations.
Mr. Hague previously managed the former AT&T Wireless' mergers and acquisitions on both the national and international front. Prior to joining AT&T Wireless, Hague was with Pacific Northwest Cellular/Western Wireless Communications where he headed legal, human resources and regulatory affairs. Prior to that, he served as a partner at the law firm of Stokes, Eitelbach & Lawrence. Mr. Hague is a member of the World Economic Forum's Telecom Industry Agenda Council. His is also president of the African Education Foundation, a private foundation he established in 1989, after serving in the Peace Corps in West Africa.


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